What are nitrogen fixing bacteria? Give two examples. What is conversion of nitrates into free nitrogen called?
Shimano answered this
rhizobium
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Aryan Daksh answered this
?????
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Parvathy answered this
Nitrogen in air is in gaseous form however, it cannot be directly taken by plants, animals or humans. There are some microorganisms which converts the gaseous nitrogen into useable form when the thunder strikes. They are found in the roots of the plants. The conversion of nitrate into free nitrogen is called as denitrication. Eg: Rhizobium, blue-green algae.
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Shivam Ramachandran Iyer answered this
nitrogen fixing bacteria are the bacteria which convert atmosheric nitrogen in a type of nitrogen which can be consumed by the plants this process is also called nitirfication .
eg
rhizobuim
eg
rhizobuim
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Sarvesh Narayanan answered this
nitrogen
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Shreya Bharti answered this
two nitrogen fixing bacterias are
- pseudomonas (bacilus)
- rhizobium bacteria
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Apple Avacado answered this
The bacterias which convert nitrogen into nitrogenous compounds are known as nitrogen fixing bacterias.
Example:-
1)Rhizobium.
2)Blue green algae.
Example:-
1)Rhizobium.
2)Blue green algae.
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Jannavi Behera answered this
Nitrogen fixing bacterias are those bacteria which are present at the root nodules of leguminious plant.Since plant cannont utilize atmospheric nitrogen the nitrogen fixing bacteria contvert it into nitrates and nitrites so that plant can utilize it .
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Ashik Hassan answered this
wo kinds of nitrogen-fixing bacteria are recognized. The first kind, the free-living (nonsymbiotic) bacteria, includes the cyanobacteria (or blue-green algae) Anabaena and Nostoc and genera such as Azotobacter, Beijerinckia, and Clostridium. The second kind comprises the mutualistic (symbiotic) bacteria; examples include Rhizobium, associated with leguminous plants (e.g., various members of the pea family); Frankia, associated with certain dicotyledonous species (actinorhizal plants
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Simran answered this
nitrogen cant be taken by plants and animals directly so some certain bactria and blue green algae converts nitrogen into nitrogen compound which can be taken by plants and animals
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Sujith Melapundi answered this
Nitrogen fixation
Nitrogen fixation is a process in which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).[1] Atmospheric nitrogen or molecular dinitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds. The fixation process frees nitrogen atoms from their triply bonded diatomic form, N≡N, to be used in other ways.
Nitrogen fixation, natural and synthetic, is essential for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms, e.g., nucleotides for DNA and RNA, the coenzyme nicotinamide adenine dinucleotide for its role in metabolism (transferring electrons between molecules), and amino acids for proteins. Therefore, as part of the nitrogen cycle, it is essential for agriculture and the manufacture of fertilizer. It is also an important process in the manufacture of explosives (e.g. gunpowder, dynamite, TNT, etc.). Nitrogen fixation occurs naturally in the soil by nitrogen fixing bacteria affiliated with some plants (for example, Azotobacter and legumes). Some nitrogen-fixing bacteria have very close relationships with plants, referred to as symbiotic nitrogen fixation. Looser relationships between nitrogen-fixing bacteria and plants are often referred to as associative or non-symbiotic, as seen in nitrogen fixation occurring on rice roots. It also occurs naturally in the air by means of lightning.[2][3]
All biological nitrogen fixation is done by way of nitrogenase metalloenzymes which contain iron, molybdenum, or vanadium. Microorganisms that can fix nitrogen are prokaryotes (both bacteria and archaea, distributed throughout their respective kingdoms) called diazotrophs. Some higher plants, and some animals (termites), have formed associations (symbiosis) with diazotrophs.
Nitrogen fixation is a process in which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).[1] Atmospheric nitrogen or molecular dinitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds. The fixation process frees nitrogen atoms from their triply bonded diatomic form, N≡N, to be used in other ways.
Nitrogen fixation, natural and synthetic, is essential for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms, e.g., nucleotides for DNA and RNA, the coenzyme nicotinamide adenine dinucleotide for its role in metabolism (transferring electrons between molecules), and amino acids for proteins. Therefore, as part of the nitrogen cycle, it is essential for agriculture and the manufacture of fertilizer. It is also an important process in the manufacture of explosives (e.g. gunpowder, dynamite, TNT, etc.). Nitrogen fixation occurs naturally in the soil by nitrogen fixing bacteria affiliated with some plants (for example, Azotobacter and legumes). Some nitrogen-fixing bacteria have very close relationships with plants, referred to as symbiotic nitrogen fixation. Looser relationships between nitrogen-fixing bacteria and plants are often referred to as associative or non-symbiotic, as seen in nitrogen fixation occurring on rice roots. It also occurs naturally in the air by means of lightning.[2][3]
All biological nitrogen fixation is done by way of nitrogenase metalloenzymes which contain iron, molybdenum, or vanadium. Microorganisms that can fix nitrogen are prokaryotes (both bacteria and archaea, distributed throughout their respective kingdoms) called diazotrophs. Some higher plants, and some animals (termites), have formed associations (symbiosis) with diazotrophs.
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